调用从我的控制器，而不是从我的asp.net MVC Web应用程序视图中的JSON API [英] Calling a JSON API from my controller instead of from the view in my asp.net mvc web application
问题描述
我需要调用一个JSON API从我的asp.ner MVC Web应用程序BPM引擎。该API调用BPM构建如下： -
<$p$p><$c$c>http://localhost:8080/jw/web/json/workflow/process/list?j_username=kermit&hash=9449B5ABCFA9AFDA36B801351ED3DF66&loginAs=' +用户名这里既有j_user＆放大器;哈希paramertes重新presents并将其设置在BPM发动机侧的主登陆用户名和密码。
目前我使用的Java /脚本在视图级别从我的asp.net mvc的调用API： -
$（文件）。就绪（函数（）{
VAR fullurl = 'http://localhost:8080/jw/web/json/workflow/package/list?j_username=kermit&hash=9449B5ABCFA9AFDA36B801351ED3DF66&loginAs=' +用户名;
$阿贾克斯（{
键入：GET，
网址：fullurl， 数据类型：JSONP
//的contentType：应用/ JSON的;字符集= UTF-8，
成功：函数（结果）{ $。每个（result.data，功能（键，VAL）{ //格式化文本显示。
//无功海峡= val.packageName +'| '+ val.packageId;
无功海峡= val.packageName;
//为产品添加列表项。
$（'＆LT;李/＆GT;'，{文字：STR}）
.appendTo（$（'＃产品'））; }）;
}
}）;
}）;
但我被告知，暴露主的登录用户名和密码都，也是LoginAS用户名从而重新presents登录用户的在asp.net mvc的是不安全的用户名，那我应该执行API调用服务器端而不是使API调用来自JavaScript代码。
但我的问题是我怎么能转换我上面code从MVC控制器端收到JSON，然后通过JSON的看法？
顺祝商祺
您可以使用的 WebClient的火HTTP请求到指定的网址：
公共类PackagesController：控制器
{
公众的ActionResult列表（）
{
使用（VAR的客户=新的WebClient（））
{
VAR的查询= HttpUtility.ParseQueryString（的String.Empty）;
查询[为j_username] =克米特;
查询[哈希] =9449B5ABCFA9AFDA36B801351ED3DF66;
查询[loginAs] =some_username;
VAR URL =新UriBuilder（HTTP：//本地主机：8080 / JW / WEB / JSON /流程/包/表）;
url.Query = query.ToString（）;
串JSON = client.DownloadString（url.ToString（））;
返回内容（JSON，应用/ JSON）;
}
}
}
或者你可以使用新的 HttpClient的在.NET 4.5介绍：
公共类PackagesController：AsyncController
{
公共异步任务＆LT;＆的ActionResult GT; ListPackages（）
{
使用（VAR的客户=新的HttpClient（））
{
VAR的查询= HttpUtility.ParseQueryString（的String.Empty）;
查询[为j_username] =克米特;
查询[哈希] =9449B5ABCFA9AFDA36B801351ED3DF66;
查询[loginAs] =some_username;
VAR URL =新UriBuilder（HTTP：//本地主机：8080 / JW / WEB / JSON /流程/包/表）;
url.Query = query.ToString（）;
变种响应=等待client.GetAsync（url.ToString（））;
VAR的结果=等待response.Content.ReadAsStringAsync（）;
返回内容（由此，应用/ JSON）;
}
}
}
和从你的JavaScript发送一个AJAX请求上述动作：
＆LT;脚本类型=文/ JavaScript的＆GT;
$（文件）。就绪（函数（）{
$阿贾克斯（{
网址：'@ Url.Action（列表，包），
输入：GET，
缓存：假的，
成功：函数（结果）{
$。每个（result.data，功能（键，VAL）{
无功海峡= val.packageName;
$（'＆LT;李/＆GT;'，{文字：STR}）
.appendTo（$（'＃产品'））;
}）;
}
}）;
}）;
＆LT; / SCRIPT＆GT;
I need to call a JSON API for a BPM engine from my asp.ner mvc web application . The API call to the BPM is constructed as follow:-
http://localhost:8080/jw/web/json/workflow/process/list?j_username=kermit&hash=9449B5ABCFA9AFDA36B801351ED3DF66&loginAs=' + username
where both the j_user & hash paramertes represents a master login username and password which are set at the BPM engine side. Currently i am calling the API using java/script at the view level from my asp.net mvc:-
$(document).ready(function () {
var fullurl = 'http://localhost:8080/jw/web/json/workflow/package/list?j_username=kermit&hash=9449B5ABCFA9AFDA36B801351ED3DF66&loginAs=' + username ;
$.ajax({
type: "GET",
url: fullurl,
dataType: "JSONP",
// contentType: "application/json; charset=utf-8",
success: function (result) {
$.each(result.data, function (key, val) {
// Format the text to display.
// var str = val.packageName + ' | ' + val.packageId;
var str = val.packageName ;
// Add a list item for the product.
$('<li/>', { text: str })
.appendTo($('#products'));
});
}
});
});
But i was told that exposing both the master-login username and password and also the LoginAS username which represents the username of the login user at the asp.net mvc is not secure, AND THAT I SHOULD PERFORM THE API CALL AT THE SERVER SIDE INSTEAD OF MAKING THE API CALL FROM A JAVASCRIPT.
but my question is how i can convert my above code to receive the JSON from the mvc controller side and then pass the JSON to the view? Best Regards
You could use a WebClient to fire an HTTP request to the specified url:
public class PackagesController: Controller
{
public ActionResult List()
{
using (var client = new WebClient())
{
var query = HttpUtility.ParseQueryString(string.Empty);
query["j_username"] = "kermit";
query["hash"] = "9449B5ABCFA9AFDA36B801351ED3DF66";
query["loginAs"] = "some_username";
var url = new UriBuilder("http://localhost:8080/jw/web/json/workflow/package/list");
url.Query = query.ToString();
string json = client.DownloadString(url.ToString());
return Content(json, "application/json");
}
}
}
or you could use the new HttpClient introduced in .NET 4.5:
public class PackagesController : AsyncController
{
public async Task<ActionResult> ListPackages()
{
using (var client = new HttpClient())
{
var query = HttpUtility.ParseQueryString(string.Empty);
query["j_username"] = "kermit";
query["hash"] = "9449B5ABCFA9AFDA36B801351ED3DF66";
query["loginAs"] = "some_username";
var url = new UriBuilder("http://localhost:8080/jw/web/json/workflow/package/list");
url.Query = query.ToString();
var response = await client.GetAsync(url.ToString());
var result = await response.Content.ReadAsStringAsync();
return Content(result, "application/json");
}
}
}
and from your javascript send an AJAX request to the aforementioned action:
<script type="text/javascript">
$(document).ready(function () {
$.ajax({
url: '@Url.Action("List", "Packages")',
type: 'GET',
cache: false,
success: function (result) {
$.each(result.data, function (key, val) {
var str = val.packageName;
$('<li/>', { text: str })
.appendTo($('#products'));
});
}
});
});
</script>
这篇关于调用从我的控制器，而不是从我的asp.net MVC Web应用程序视图中的JSON API的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
